A 72-year-old woman arrives as triage level 1 with palpitations and near-syncope. Monitor shows a regular narrow-complex tachycardia at 190/min, BP

Question

A 72-year-old woman arrives as triage level 1 with palpitations and near-syncope. Monitor shows a regular narrow-complex tachycardia at 190/min, BP is 72/40 mm Hg, and she is confused despite oxygen and IV access. Which of the following is the most appropriate initial action?

Accepted Answer

Synchronized electrical cardioversion

Answer

Valsalva maneuver with leg raise

Answer

Diltiazem infusion

Answer

Adenosine 6 mg rapid IV push

Answer

Amiodarone infusion

Unstable supraventricular tachycardia — ABEM Board MCQ

A 72-year-old woman arrives as triage level 1 with palpitations and near-syncope. Monitor shows a regular narrow-complex tachycardia at 190/min, BP is 72/40 mm Hg, and she is confused despite oxygen and IV access. Which of the following is the most appropriate initial action?